I have my polygon read from a list of points on a text file, this works fine but I was wondering if there is a way to draw the Polygon read or at least the points. I couldn't find anything related on the documentation.
Is gnuplot the only solution? Hope you can help me.
You can use Geomview as mentioned in the documentation. But you will have to write the Polygon to OFF format, for which CGAL provides functions similar to write_off for many of its classes. You will have to open Geomview externally. Another option would be to write out a VTK file and visualize it with Paraview. This is what I use but you will have to write the code to convert from CGAL data structures to VTK data-structures.